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Calculated the volume of 1 M solution of HCl needed for 1 unit shift of the pH of the following solutions:
a. 100 mL of 0.01 M solution of weak acid (pKa = 6) and 0.05 M of its sodium saltb. 0.005 mole of sodium formiate and 23 g of formic acid dissolved in 100 mL of water. (pKa of formic acid = 3.75)c. 100 mL of 0.1M ammonsia solution.
State the most likely primary alcohol and hydrogen halide needed for the preparation of 1 bromoheptane.
When dealing with Hydrogenation of Oils, does it matter which double C bond you hydrogenate if there are two or more to make the oil partially hydrogenated?
Calculate the density and radius of the ball bearing (volume of a sphere of radius r is 4/3pi r^3).
A solution is made by dissolving 0.0350 mol of HF in enough water to make 1.00L of solution. At 24°C, the osmotic pressure of the solution is .975 atm.
What is the molar solubility of CaF2 in 0.10 M NaF solution at 25°C? The Ksp for CaF2 is 1.5x10^-10.
Explain why the absolute value of the work done by a process can never be greater than the absolute value of the Helmholtz free energy change.
Calculate the expectation value for the potential energy of the H atom with the electron in the 1s orbital. Compare your result with the total energy
Explain Cyclopentadiene reacts as a diene in the the Diels-Alder reaction a great deal faster than does 1,3 butadiene.
Calculate the concentration of iron (II) chloride contaminant in the original groundwater sample. Round your answer to significant digits.
What is the composition of this mixture on a mole percent basis? Show all calculations and report answer to correct number of significant figures
A reaction has a standard free-energy change of -12.60 kJ mol-1 (-3.011 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C
At equilibrium a 2L vessel contains .410 mol of H2, .130mol of Br2, and 36.0 mol of HBr. What is the equilibrium constant for the reaction at this temperature?
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